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Performance comparison of a triple-effect absorption refrigeration cycle with water/lithium bromide and two water/alkalie salts working fluids.

Author(s) : FITO J., SALAVERA D., CORONAS A.

Summary

Multi-effect absorption technology was already conceived and studied, although its practical application encounters some limitations bound to construction materials and working fluids. The water/lithium bromide working fluid is efficient and commercially implemented, but its use becomes difficult at high generator temperatures (> 150 ºC), namely because of corrosion and thermal decomposition. Several other working fluids have been proposed for high temperatures. In this study, we focus on a recently proposed aqueous solution of lithium nitrate, potassium nitrate and sodium nitrite. We analyze the performance of a triple-effect
absorption refrigeration cycle that uses the traditional water/lithium bromide working fluid in the low-pressure zone and the alkaline salt aqueous solution in the high-pressure zone. We compare the performance of the proposed working fluid with that of a similar working fluid that is commercially available.

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Pages: 7

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Details

  • Original title: Performance comparison of a triple-effect absorption refrigeration cycle with water/lithium bromide and two water/alkalie salts working fluids.
  • Record ID : 30018037
  • Languages: English
  • Source: CYTEF 2016. VIII Congreso Ibérico y VI Congreso Iberoamericano de las Ciencias y Técnicas del Frío, Coimbra-Portugal, 3-6 mayo, 2016.
  • Publication date: 2016/05/03

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